I have a car as my daily driver and it's a 2005 with only 65,000 miles on it. The check engine light came on recently. So, I took it to my local garage and they put their OBD on it to say that it's the knock sensor. The car has no ill effects of this check engine light or this sensor and it runs like a top. I was thinking of getting a scanner to verify myself and to have one just incase and to clear the code too. I'm looking to see if I want to tackle this myself or just live with the light.